How can I download Realtek HD Audio Manager

My headphones won't work with windows and I need the app to fix it; other sites say that I need the Realtek audio driver; and it will come with it, but I have the latest version of the driver and I know for a fact it doesn't (I downloaded the driver straight
from Realtek

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The application that you are looking for might be packaged with the driver that is needed for your sound card. We recommend that you contact the device manufacturer's website and see if you could download the application from them.

Okay so checked my folder (C:\Program Files\Realtek\Audio\HDA) with the unaltered original install; turns out I had the application all along, the problem though is that I can't get it to launch (Not Even In
Compatibility Mode.

Ma'am, I found out before I bothered that I do have the program; but I couldn't get it to run, I ran compatibility troubleshooter and it determined that Realtek HD Audio Manager is completely In-compatible with Windows 10!